Bravo List - some problem with big torrents

hi
my download.php looks like this..
daffy it's to much work to change script and vi are only 2000 users on a private tracker.

Code:


require_once("include/bittorrent.php");

dbconn();

parked();

if ($CURUSER["downloadpos"] == 'no')

{

stdmsg("Tyvärr..", "Du kan inte ladda ner torrents! Hör med bryggan varför.");

stdfoot();

exit;

}

if (!preg_match(':^/(\d{1,10})/(.+)\.torrent$:', $_SERVER["PATH_INFO"], $matches))

httperr();

$id = 0 + $matches[1];

if (!$id)

httperr();

$res = mysql_query("SELECT name FROM torrents WHERE id = $id") or sqlerr(__FILE__, __LINE__);

$row = mysql_fetch_assoc($res);

$fn = "$torrent_dir/$id.torrent";

if (!$row || !is_file($fn) || !is_readable($fn))

httperr();

　

mysql_query("UPDATE torrents SET hits = hits + 1 WHERE id = $id");

require_once "include/benc.php";

　

　

if (strlen($CURUSER['passkey']) != 32) {

$CURUSER['passkey'] = md5($CURUSER['username'].get_date_time().$CURUSER['passhash']);

mysql_query("UPDATE users SET passkey='$CURUSER[passkey]' WHERE id=$CURUSER[id]");

}

　

　

$dict = bdec_file($fn, (1024*1024));

$dict['value']['announce']['value'] = $announce_urls[0]."?passkey=$CURUSER[passkey]";//"$DEFAULTBASEURL/announce.php/passkey=$CURUSER[passkey]";

$dict['value']['announce']['string'] = strlen($dict['value']['announce']['value']).":".$dict['value']['announce']['value'];

$dict['value']['announce']['strlen'] = strlen($dict['value']['announce']['string']);

// Remove multiple trackers from torrent

unset($dict['value']['announce-list']);

header("Content-Type: application/x-bittorrent");

print(benc($dict)); 

mysql_query("DELETE from bookmarks WHERE torrentid = $id AND userid = $CURUSER[id] LIMIT 1");

?>

Bump: no one? tbdev 120905 i think its called that i use, and like i say have no need to change script, mine have a lot of mods and translated so change is not an option for me..
so if any know if or where there is a limit so whare is it? upload the the torrent works good, but not download it :(